If you update Windows on a device that runs Desktop Flow (I wonder the same issue occurs other that Windows update), Power Automate > Monitor > the state of the device goes offline.
Since it occurs frequently on devices in multiple environments, aren't there similar service requests?
In that state, the PAD settings on the device> Computer (Preview) screen will show "Connected" and it will look normal (it does not change anything even if you click [Update] to latest state), but the above Power Automate machine screen will still remain offline (this is the same even if you update the screen etc.)
Since the state does not return as it is, in order to recover, delete the corresponding device once on the machine screen on Power Automate (if necessary, also delete the data > connection that uses the corresponding device), and If you click [Update] to the latest state on PAD, it will return to the state before registration, so if you click [Register] to connect to new computer, the corresponding device will finally be online on the machine screen on Power Automate.
Also, once you reconnect, it is necessary to reset the flow using the corresponding device.
I think this is some kind of problem, but please let me know if you have any information on how to fix it.
A reference image is attached just in case.